HD74AC539 Datasheet, PDF (2/10 Pages) Hitachi Semiconductor – Dual 1-of-4 Decoder with 3-State Output

HD74AC539
Pin Arrangement
O2b 1
O1b 2
O0b 3
Pb 4
OEb 5
A0a 6
A1a 7
O3a 8
O2a 9
GND 10
Logic Symbol
(Top view)
20 VCC
19 O3b
18 A1b
17 A0b
16 Eb
15 Ea
14 OEa
13 Pa
12 O0d
11 O1a
P A0 A1
E
DECODER a
OE
O0 O1 O2 O3
P A0 A1
E
DECODER b
OE
O0 O1 O2 O3
2